Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

ابحث في الدعم

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

using an older version of firefox can corrupt bookmarks and browsing history version 90

  • 1 (رد واحد)
  • 1 has this problem
  • 1 view
  • آخر ردّ كتبه cor-el

more options

Hello,

Since a few days Firefox starts with the same message: using an older version of firefox can corrupt bookmarks and browsing history.... the current version is 90 and is updated to 91.0.1

Hello, Since a few days Firefox starts with the same message: using an older version of firefox can corrupt bookmarks and browsing history.... the current version is 90 and is updated to 91.0.1
Attached screenshots

All Replies (1)

more options

You get this message if you start an older Firefox version than last used this profile. Current Firefox releases do not allow this and show this message.

See "Blocking downgrades" and "Disabling the changes".